.demo2{
    margin: 20px;

    .nav{
        a{
            display: inline-block;
            margin: 0 20px;
            
            padding: 0 20px;
            height: 40px;
            line-height: 40px;

            border-radius: 20px;
            color: #aaa;
            text-decoration: none;
        }
    }

    a.btn{
        margin: 0 20px;
    }

    .action-bar{
        position: fixed;   
        left: 0;
        bottom: 20px;
    }

    @media all and (orientation:landscape) {
        img{
        }
    }
}